If you are facing any error during running EP site from ax then you are getting message like troubleshooting with share point then first you need to check your customization is there error in you page if still problem not resolved then you can compile data dictionary from AOT and if any error coming to table which is related to EP user control or form then you need to resolve that error. If error still exist then you need to compile whole AOT component like classes, forms and reports etc. If still error not resolve then you need to check deployment for you web component like web control , web module etc. I hope after doing that activity you problem will resolve if still problem exists then last option is fresh installation of EP and share point. During installation It can ask to install prerequisite software like .net framework 2.0 which exist in share point setup if its using for ax 2009. Do not forget to take backup of your customization and web project form EP folder and
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